| Values for Old Faithful Area | 1978-08-24 |
|---|---|
| Astronomical Twilight Begin | 04:48 |
| Nautical Twilight Begin | 05:28 |
| Civil Twilight Begin | 06:06 |
| Sunrise | 06:36 |
| Sunset | 20:14 |
| Civil Twilight End | 20:45 |
| Nautical Twilight End | 21:22 |
| Astronomical Twilight End | 22:02 |
| Moon Illumination | 62.54% |